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A263680
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Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and with no two consecutive decreases.
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1
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1, 2, 5, 17, 70, 349, 1658, 7356, 30374, 121676, 479589, 1917853, 7777174, 31840851, 130793340, 537219555, 2200344721, 8992050521, 36701192008, 149773458903, 611384304706, 2496957012448, 10201222295479, 41681902590078
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=7
..0....4....3....5....0....5....2....0....4....2....0....2....4....2....3....5
..3....0....0....0....3....1....3....4....5....3....2....3....6....5....5....1
..6....5....2....3....4....2....0....1....6....5....4....0....0....6....0....4
..4....2....1....6....1....6....5....2....0....0....1....5....5....0....1....0
..5....6....6....1....2....0....1....5....1....1....3....1....2....3....6....3
..1....1....4....2....5....4....6....3....2....4....5....4....3....4....2....6
..2....3....5....4....6....3....4....6....3....6....6....6....1....1....4....2
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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